From: Andrew Bresticker <abrestic@chromium.org>
Date: Thu, 30 Oct 2014 20:01:07 +0000 (-0700)
Subject: mailbox: Don't unnecessarily re-arm the polling timer
X-Git-Tag: omap-for-v3.19/fixes-rc1~130^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=52a49306d7d19ef127e6d6f4fd92f84d4864296f;p=pandora-kernel.git

mailbox: Don't unnecessarily re-arm the polling timer

poll_txdone() will unconditionally re-arm the polling timer if there was
an active request, even if the active request completed and no other
requests were submitted.  This is fixed by:
 - only re-arming the timer if the controller reported that the current
   transmission has not completed, and,
 - moving the call to poll_txdone() into msg_submit() so that the
   controller gets polled (and the timer re-armed, if necessary) whenever
   a new message is submitted.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
---

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